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-   -   Exhaust shortening/how to. (https://www.superhawkforum.com/forums/modifications-performance-29/exhaust-shortening-how-27868/)

dshakes 03-25-2012 05:51 AM

Exhaust shortening/how to.
 
5 Attachment(s)
Attachment 13636
First I drilled out the rivets.
Attachment 13637
This is what it looks like after the rivets are removed.
Attachment 13638
This is what you get when you pull it all apart.
Attachment 13640
I then drilled out the Devil plate so it can be moved.
Attachment 13639
I used the metal cutting wheel to lightly score the steel wool material as i found that the easiest way to cut it back and remove it.

dshakes 03-25-2012 06:04 AM

Exhaust how to/ part 2
 
5 Attachment(s)
Attachment 13642
A hose clamp makes a great guide thanks to a forum members suggestion for cutting. Cut off 6 1/2 inches.
Attachment 13643
So this is the actual cutting. Metal cutting wheel in a grinder.
Attachment 13644
This is the removed material.
Attachment 13645
This is actually the end result. Stainless steel rivets hold it all together.
Attachment 13641
This is the finished product and the new placement for the devil logo plate.

Wolverine 04-09-2012 10:41 AM

Did I get the order right D?
Thanks for doing this write up. I plan to do this to my D&D's in the near future. Do you wish you would have taken off less (is it too loud)?

smokinjoe73 04-09-2012 12:03 PM

A forum member? I want my credit for the hose clamp tip!

Wolverine 04-09-2012 04:20 PM

I hearby officially give smokinjoe credit for the hose clamp tip!!
:evillaugh:

smokinjoe73 04-09-2012 06:09 PM

Uh oh, is this gonna come back to haunt me somehow?

dshakes 04-09-2012 07:11 PM

Sorry smokinjoe!! Credit given for the clamp idea lol. Couldn't remember at the drop of a hat who gave me the idea. 97wolverine, the order is great. Thanks man. I thought of taking off a bit less but decided to just go for it. It is loud I will say that but I love the deep loud tone. I'm happy with it. But everyone is different and we all know that opinions fly freely on the forum haha!

ur_averagejoe4 04-11-2012 10:04 AM

I was thinking about doing that to my RT-1s. Was performance affected any? How much louder was it? Would you recommend keeping any of the baffle once the pipes are shortened?

dshakes 04-11-2012 02:55 PM

Averagejoe, when I switched from stock to the devil cans I shimmed the carbs and that whole mess so when the devils got shortened I didn't notice any loss or gain of any kind. I'm not much of a technical guy like some of the members but decreasing backpressure can make her a little bitchy(carb farts) but if it's fine with the RT-1s then you shouldn't notice a difference. In terms of sound she makes harley riders cry lol. The Hawk screams with the shortened Devil cans but I love it very loud. Bottom line, it will be considerably louder. As for the baffle, on the devil cans the baffle and the end cap are one piece. So the baffle had to go back in. I would recommend putting it back regardless. I just had to shorten mine so it would slide back into the opposite end cap where the exhaust pipe connects. See picture 3 to see the baffle and end cap. Hope that all helps and makes sense.

GTS 04-18-2012 10:11 AM

The VTR I just got had been down on the right side and the guy had leaned it up against a pole on the left so both cans are messed up. I read this thread and LOVE the idea of just cutting a section of the can off to get rid of the scraped up parts! Thanks for the idea!!

Wolverine 06-08-2012 07:13 PM

16 Attachment(s)
Not trying to jack, just adding to the info

Started w/
Attachment 24588
Attachment 24589

Drill out rivets and w/ much persuasion
Attachment 24590
and I have to give credit where credit is due...smokinjoe, thanks for the clamp tip!:lol:

I used a hand held hack saw
Attachment 24591
Attachment 24592

Then I had to start sanding off clamp marks. 3M wet paper, 200-400-800-1k
Attachment 24593
Attachment 24594
Attachment 24595
Attachment 24596

Hand sanding complete, I set up my drill and made a shroud
Attachment 24597

And bling bling
Attachment 24598
Can still see some pitting but I'm ok w/ what I got
Attachment 24599
Attachment 24600


Subtle but I really like the looks!
Attachment 24601
Attachment 24602
Attachment 24603

Can't wait to go for a ride tomorrow!!:cool:

GTS 06-08-2012 11:29 PM

You guys notice that cutting the mufflers short makes them any louder or not?

Wolverine 06-09-2012 03:22 AM

Yes. :)

dshakes 06-10-2012 06:16 PM

Quite a bit louder

dshakes 06-10-2012 06:19 PM

97wolverine. Nice job man. Looks good and clean!


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